Originally Posted by
darrenoakley
When on a straight and putting the power on the car pulls to one side. It only does this with lower turn motors and tracks completely straight at normal speed. This to me would say it's the diff slipping but it is hard to turn when I hold the spur and one wheel so presume it is tight enough. Anyone else exspereanced this problem in 12 th ? When I say lower turns I mean 10.5 as I was running 17.5.
Your rear axle could be spaced incorrectly or could be too tight. There needs to be a little play in the rear axle or you will bind the rear bearings which are both on the same side of the diff.